OBD Guide

P01DC

Cylinder 9 Injection Timing Performance - Over Advanced

P01DC is an OBD-II diagnostic trouble code meaning: Cylinder 9 Injection Timing Performance - Over Advanced. Common causes: malfunction of the fuel injector of cylinder 9, problems with sensors (mass air flow sensor, crankshaft position sensor). Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine knock
  • Increased fuel consumption
  • Reduced engine power
  • Unstable idling

Causes

  • Malfunction of the fuel injector of cylinder 9
  • Problems with sensors (mass air flow sensor, crankshaft position sensor)
  • Problems in the injector control circuit
  • Timing chain wear
  • VVT system malfunction

How to Fix

  1. Check the condition of the fuel injector of cylinder 9
  2. Diagnose sensors (mass air flow sensor, crankshaft position sensor)
  3. Check the wiring harness to the injector
  4. Check the condition of the timing chain
  5. Diagnose the VVT system

Related codes

Error P01DC by Vehicle Brand

FAQ

What does the P01DC code mean?

P01DC is an OBD-II diagnostic trouble code that indicates: Cylinder 9 Injection Timing Performance - Over Advanced

What causes a P01DC error code?

The most common causes of P01DC include: Malfunction of the fuel injector of cylinder 9; Problems with sensors (mass air flow sensor, crankshaft position sensor); Problems in the injector control circuit; Timing chain wear.

How do I fix a P01DC diagnostic trouble code?

To fix P01DC: Check the condition of the fuel injector of cylinder 9. Diagnose sensors (mass air flow sensor, crankshaft position sensor). Check the wiring harness to the injector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P01DC?

Limited driving only, diagnose soon

How much does it cost to fix P01DC?

The estimated repair cost for P01DC is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat